Dr. Kwan's hypothesizes that allowing factory employees to listen to music while working will improve productivity. After conducting the experiment,
Dr. Kwan finds that the group of participants who were allowed to listen to music was more productive than the group who did not, but this difference was not statistically significant. What should Dr. Kwan conclude about the difference between the two groups?
A) It supports his hypothesis.
B) He is likely to find the same effect if he replicated the study.
C) There is an unacceptable chance that the difference is due to random chance.
D) The experiment was biased.
Answer: C
Rationale: Statistical significance implies that the means of the groups are further apart than you would expect them to be by random chance alone. If a result is not statistically significant, then the difference between the groups is too likely to be due to random chance to support the hypothesis. This means that the results may not be able to be replicated.
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A work schedule that allows an employee to work fewer days per week by putting in more hours per day is referred to as
a. a self-managed team. b. flexplace. c. a compressed workweek. d. telework.
Regarding social support, which of the following statements is FALSE?
a. Sharing positive events with others tends to amplify these emotions and increase social support. b. Support from family, friends, and even pets serves as a buffer to cushion the impact of stressful events. c. People with close, supportive relationships have better immune responses and better health. d. Men are just as likely as women to seek support when stressed and to nurture others.
Roger stays in a chronic state of tension and constantly worries about his job and his family. He often experiences profuse sweating, a racing heart, rapid breathing, and an upset stomach. There is a good chance that Roger is experiencing
a. a generalized anxiety disorder. b. sociopathy. c. psychosis. d. a nervous breakdown.
Sex differences are magnified and taken seriously during early adolescence; this is termed gender
a. reassignment surgery. b. androgynization. c. intensification. d. inflation.